Abstract
In conceptual design phase, if designers are much more conscious of design objectives, they won't come up with various ideas about new product. On the other hand, using brainstorming allow to get various ideas, but to get a lot of unavailable ideas together. In this study, to support generating various and effective ideas in conceptual design, we propose two conceptual design support methods based on Data Envelopment Analysis and Analytic Hierarchy Process. The former is the method using several evaluation values to fill the gap of palate frontier and creating hierarchy graphs. The latter is method establishing a prioritized list of all ideas by paired comparison. Various information is given to the designer from these graphs when they conceive new ideas. We verified which technique is effective to obtain new ideas with high evaluation by comparing these two methods. The result shows that the proposed method using hierarchy graphs is more efficient than the other way using the prioritization graph.
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